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Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to London, ON from C$ 275

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — YXU
25 Feb — 4 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Pierre Elliott Trudeau Intl to London

Enter your travel dates to find the best prices.

Cheapest flights from Pierre Elliott Trudeau Intl to London
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 January 2026.

Mon 23/37:30 p.m.
YUL
-
YXU
1 stop11h 05m
WestJet
Sun 29/38:10 p.m.
YXU
-
YUL
1 stop10h 55m
WestJet
Deal found 26/1C$ 362
Mon 23/27:30 p.m.
YUL
-
YXU
1 stop11h 05m
WestJet
Mon 2/38:10 p.m.
YXU
-
YUL
1 stop10h 55m
WestJet
Deal found 26/1C$ 429
Mon 23/37:30 p.m.
YUL
-
YXU
1 stop11h 05m
WestJet
Mon 30/38:10 p.m.
YXU
-
YUL
1 stop10h 55m
WestJet
Deal found 24/1C$ 510
Wed 18/26:45 a.m.
YUL
-
YXU
2 stops23h 50m
WestJet
Wed 25/28:10 p.m.
YXU
-
YUL
1 stop10h 55m
WestJet
Deal found 24/1C$ 542
Wed 18/26:45 a.m.
YUL
-
YXU
2 stops23h 50m
WestJet
Fri 20/27:30 a.m.
YXU
-
YUL
1 stop23h 35m
WestJet
Deal found 25/1C$ 611
Mon 23/25:25 p.m.
YUL
-
YXU
2 stops13h 10m
Multiple Airlines
Mon 2/38:10 p.m.
YXU
-
YUL
2 stops20h 42m
Multiple Airlines
Deal found 26/1C$ 638
Mon 23/36:45 a.m.
YUL
-
YXU
2 stops23h 50m
Multiple Airlines
Mon 30/38:10 p.m.
YXU
-
YUL
2 stops20h 45m
Multiple Airlines
Deal found 24/1C$ 692
Sat 11/44:40 p.m.
YUL
-
YXU
1 stop4h 38m
Air Canada
Tue 14/45:10 a.m.
YXU
-
YUL
1 stop4h 10m
Air Canada
Deal found 25/1C$ 693

Find flight deals from Pierre Elliott Trudeau Intl to London

Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) to London (YXU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 26 January 2026.

Round-trip from

C$ 362

One-way from

C$ 275

Popular in

December

Cheapest in

November

Average price

C$ 771
WestJet
  • WestJet
  • 23/3-29/3
  • 2 total stops
  • 22h 00m total
  • Montreal to London
Search Deals
WestJet
  • WestJet
  • 10/2
  • 1 total stop
  • 11h 05m total
  • Montreal to London
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 47 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pierre Elliott Trudeau Intl to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 26 January 2026.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to London that are best for you.

Fly from

Pierre Elliott Trudeau Intl

Fly to

London

Route

Depart

Return

Price

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Mon 23/3

6:45 a.m.-6:35 a.m.

2 stops23h 50m

London

Sun 29/3

8:10 p.m.-7:05 a.m.

1 stop10h 55m

C$ 420

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Mon 23/3

7:30 p.m.-6:35 a.m.

1 stop11h 05m

London

Mon 30/3

8:10 p.m.-7:05 a.m.

1 stop10h 55m

C$ 510

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Wed 18/2

6:45 a.m.-6:35 a.m.

2 stops23h 50m

London

Wed 25/2

8:10 p.m.-7:05 a.m.

1 stop10h 55m

C$ 542

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Wed 18/2

6:45 a.m.-6:35 a.m.

2 stops23h 50m

London

Fri 20/2

7:30 a.m.-7:05 a.m.

1 stop23h 35m

C$ 611

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Mon 23/3

6:45 a.m.-6:35 a.m.

2 stops23h 50m

London

Mon 30/3

8:10 p.m.-4:55 p.m.

2 stops20h 45m

C$ 692

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Thu 26/2

11:10 a.m.-5:05 p.m.

1 stop5h 55m

London

Wed 4/3

9:40 a.m.-3:40 p.m.

2 stops6h 00m

C$ 704

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Sat 11/4

3:35 p.m.-9:18 p.m.

2 stops5h 43m

London

Tue 14/4

9:25 a.m.-3:39 p.m.

2 stops6h 14m

C$ 707

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Wed 18/2

6:45 a.m.-6:35 a.m.

3 stops23h 50m

London

Wed 25/2

8:10 p.m.-5:00 p.m.

2 stops20h 50m

C$ 707

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Tue 10/2

7:30 p.m.-6:35 a.m.

1 stop11h 05m

C$ 275

MontrealLondon

YUL - YXU

YULYXU

Montreal Pierre Elliott Trudeau Intl

Mon 2/2

7:30 p.m.-6:35 a.m.

1 stop11h 05m

C$ 330

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/1

Showing 1-10 of 12 results
1
2

Best time to book a flight from Pierre Elliott Trudeau Intl to London

Have a flexible travel schedule? Discover the best time to fly to London from Pierre Elliott Trudeau Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Montreal Pierre Elliott Trudeau Intl Airport to London

What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to London, Ontario?

Currently, February is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to London, Ontario (average of C$ 101). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London, Ontario in August is currently the most expensive (average of C$ 215). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 26 January 2026.
See what other customers who have flown with Air Canada from Montreal Pierre Elliott Trudeau Intl Airport to London have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
10,656 reviews
Check prices

Entertainment

6.8

Comfort

7.1

Food

6.3

Boarding

7.3

Overall

7.1

Crew

7.8

Reviews

1 / 20
4.0
Okay

Sugith,Jan 2026

YSB - YYZ

Left 2 hours late. Stuck on plane for an hour after boarding before take off.
Air Canada
7.1
Good
10,656 reviews
Air Canada
7.1
Good
10,656 reviews
Check prices

Entertainment

6.8

Comfort

7.1

Food

6.3

Boarding

7.3

Overall

7.1

Crew

7.8

Reviews

1 / 20
4.0
Okay

Sugith,Jan 2026

YSB - YYZ

Left 2 hours late. Stuck on plane for an hour after boarding before take off.

Related info for your journey

Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to London from Montreal Pierre Elliott Trudeau Intl?

    London (YXU) is the airport you will fly into if you book a flight from Montreal Pierre Elliott Trudeau Intl to London. You should not have trouble finding flights to London from Montreal Pierre Elliott Trudeau Intl; the airport handles an average of 0 inbound flights from Montreal Pierre Elliott Trudeau Intl per day. You should also have plenty of airline options to choose from since 1 airline has flights to the London airport from Montreal Pierre Elliott Trudeau Intl. It is only a 8.6 km journey from London (YXU) to London’s city centre.

  • How long is the flight from Montreal Pierre Elliott Trudeau Intl Airport to London, Ontario?

    Airlines like WestJet fly from Montreal Pierre Elliott Trudeau Intl Airport to London, Ontario in about 23h 50m. The time it takes to get you to your destination can typically vary by up to . Montreal Pierre Elliott Trudeau Intl Airport and London, Ontario are separated by a distance of 647 km.

  • What is the cheapest airline to fly from Montreal Pierre Elliott Trudeau Intl Airport to London, Ontario round-trip?

    Flying on Air Canada is currently your cheapest option to London, Ontario, with prices starting at C$ 416. Air Canada is currently priced 49% below the average price you’ll pay for this route.

  • Can I find deals for flights from Pierre Elliott Trudeau Intl to London that include hotel bookings?

    Yes. In addition to deals on Pierre Elliott Trudeau Intl to London flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pierre Elliott Trudeau Intl to London?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pierre Elliott Trudeau Intl to London.

  • Can I find deals for business class flights from Pierre Elliott Trudeau Intl to London?

    Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to London, Ontario?

    Currently, February is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to London, Ontario (average of C$ 101). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London, Ontario in August is currently the most expensive (average of C$ 215). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near London?

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Top airline flying from Pierre Elliott Trudeau Intl to London

Discover the top airline that operate flights from Pierre Elliott Trudeau Intl to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 26 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 416AverageC$ 729FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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